From the category archives:
Photo courtesy: Jessica Finson
A while back we tried to customize unix prompt to look like Angelina Jolie.
Oh boy, didn’t I fail miserably in that attempt? Well, that didn’t stop me from trying an extreme makeover for mysql> prompt.
Let us face it. The following mysql> prompt is boring. Nobody wants to see it. Let us change the default mysql> prompt to something functional and useful.
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Question: How do I disable mysql history? I don’t want mysql to remember the previous commands that I typed from the mysql> prompt. This is important for me, as when I type some sql commands that contains passwords, I see the clear text password stored in the ~/.mysql_history, which I don’t want to happen.
Answer: Bash history feature stores the Unix commands typed in the command line in the ~/.bash_history file. Similar to bash shell, mysql stores the commands typed in the mysql> prompt in the ~/.mysql_history file.
In this article, let us review how to disable mysql history.
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Forgot your MySQL root user password? Don’t worry. We are here for rescue.
When you tried to login to root without entering a password, you may get ‘Access Denied’ message, as MySQL is expecting a password.
This article explains how to recover mysql root password by setting a new MySQL password when you don’t remember your old one.
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Question: How do I change MySQL root Password?
Answer: You can change MySQL root password using one of the following 3 methods.
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Some of the open source application comes with postgreSQL database. To maintain those application, companies may not hire a fulltime postgreSQL DBA. Instead they may request the existing Oracle DBA, or Linux system administrator, or programmers to maintain the potgreSQL. In this article let discuss about the 15 practical postgresql database commands which will be useful to both DBA and expert psql users.
Also, refer to our previous article about 15 Practical PostgreSQL DBA Commands.
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Starting up and shutting down the oracle listener is a routine task for a database administrator. However a Linux system administrator or programmer may end-up doing some basic DBA operations on development database. It is critical for non-DBAs to understand the basic database admin activities.
In this article, let us review how to start, stop, check status of an oracle listener using Oracle listener control utility LSNRCTL.
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Earlier we discussed about how to install PostgreSQL database on Linux from source.
In this article, let us review top 15 practical postgreSQL DBA command examples.
If you are a mySQL administrator, check-out our 15 examples of mysqladmin command article that we discussed a while back.
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Similar to mySQL, postgreSQL is very famous and feature packed free and open source database.
Earlier we’ve discussed several installations including LAMP stack installation, Apache2 installation from source, PHP5 installation from source and mySQL installation.
In this article, let us review how to install postgreSQL database on Linux from source code.
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"Vim offers just about everything you could ever want from an editor. The best that can happen is when an experienced user shows you the way and accompanies you as you learn. This book does exactly this. "
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My name is Ramesh Natarajan. I will be posting instruction guides, how-to, troubleshooting tips and tricks on Linux, database, hardware, security and web. My focus is to write articles that will either teach you or help you resolve a problem. Read more about Ramesh Natarajan and the blog.Copyright © 2008–2010 Ramesh Natarajan. All rights reserved |
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